Did a search and came up with nothing. Just people selling conversion harnesses. Like the topic says, What is the difference between OBD2A and OBD2B?? As a technician i only know what OBD2 is.

 

6th Gen Civic's were produced from 96-00. In 99, Honda changed a few electrical things, like the ECU connector arrangment for example. So a 96-98 ECU won't plug directly into a 99-00 chassis and vice-versa, which is why conversion harnesses are sold as they are.

For Civic's:
96-98 = OBD2a
99-00 = OBD2b

For Integra's
96-99 = OBD2a
00-01 = OBD2b

 

thanks for clearing that up.

 

next question. Where can you get connectors for the ECU so I can make my own conversion harness. Harness side, I can get from a junkyard. I would need the ECU side, the one with the Male terminals.